iStarSign inEnglish 9 · Unit 4: Science · Cambridge Global English Stage 9
4.G4 Present perfect active and passive
23 questions · e.g. Many lives ____ by the new vaccine. (save)
Questions
1. Rule: we use the present perfect for events that happened in the ____.
Check2. Rule: the event is finished or ____, or has a result that we can see now.
Check3. Rule: the event continues up to now or ____ a result that we can see now.
Check4. Rule: we ____ the present perfect for events that happened at a specific time in the past.
Check5. This vaccine ____ on animals, but not on humans. (test)
Check6. Hundreds of volunteers ____ the new therapy. (give)
Check7. A single cure for all cancers ____ yet. (find)
Check8. New medical treatments ____ using DNA. (develop)
Check9. Why ____ the research results ____ yet? (not publish)
Check10. In recent years, more evidence ____.
- have been recorded in the database
- have been influenced more and more by technology
- have already been informed via email
- has been found about the link between exercise and mental health
11. In the last couple of decades, our lives ____.
- have already been informed via email
- have been influenced more and more by technology
- has been damaged by human activities
- has been collected from 10,000 participants
12. The winners of the prize ____.
- have been recorded in the database
- have already been informed via email
- has been damaged by human activities
- has been found
13. Sadly, a large area of the rainforest ____.
- has been collected from participants
- have been recorded in the database
- has been damaged by human activities
- have been influenced by technology
14. Using an online survey, information ____.
- have been recorded in the database
- have been informed via email
- has been collected from more than 10,000 participants
- has been damaged by human activities
15. So far, the details of around a hundred patients ____.
- has been found about exercise
- have been influenced by technology
- have been recorded in the database
- has been damaged
- Research has carried out into the causes.
- Researches have been carried out into the causes.
- Research has been carried out into the causes of the condition.
- Research have been carried out into the causes.
17. A special robot ____ to find its way around the hospital. (design)
Check18. Some tasks, such as measuring vital signs, ____ over by robotic nurses. (take)
Check19. Recently, robots ____ more specialised. (become)
Check20. Some complex operations ____ by surgical robots. (carry out)
Check